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3Cu + 2Fe2(SO4)3 + 6H+ → 3Cu2+ + 4FeSO4 + SO2↑ + H2SO4 + 2H2O

Reaction of copper and iron(III) sulfate under acidic condition

The reaction of copper, iron(III) sulfate, and hydrogen ion yields copper(II) ion, iron(II) sulfate, sulfur dioxide, sulfuric acid, and water (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

Reaction of copper and iron(III) sulfate under acidic condition

General equation

Reaction of oxidizable species and oxidizing species under acidic condition
Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent
ProductOxidation product + ProductReduction product + H2ONon-redox product

Oxidation state of each atom

Reaction of copper and iron(III) sulfate under acidic condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CuCopper3
Reducing
Oxidizable
Fe2(SO4)3Iron(III) sulfate2
Oxidizing
Oxidizing under acidic condition
H+Hydrogen ion6
Hydrogen ion

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cu2+Copper(II) ion3
Oxidized
FeSO4Iron(II) sulfate4
Reduced
SO2Sulfur dioxide1
Reduced
H2SO4Sulfuric acid1
H2OWater2
Water

Thermodynamic changes

Changes in standard condition (1)

Reaction of copper and iron(III) sulfate under acidic condition
ΔrG−120.1 kJ/mol
K1.10 × 1021
pK−21.04
3CuCrystalline solid + 2Fe2(SO4)3Ionized aqueous solution + 6H+Un-ionized aqueous solution
3Cu2+Un-ionized aqueous solution + 4FeSO4Crystalline solid + SO2Gas + H2SO4Ionized aqueous solution + 2H2OLiquid
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1
Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1
Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1
Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
353.0−120.11582.9
per 1 mol of
117.7−40.03527.63
per 1 mol of
176.5−60.05791.45
per 1 mol of
Hydrogen ion
58.83−20.02263.82
per 1 mol of
Copper(II) ion
117.7−40.03527.63
per 1 mol of
88.25−30.02395.73
per 1 mol of
353.0−120.11582.9
per 1 mol of
353.0−120.11582.9
per 1 mol of
176.5−60.05791.45

Changes in standard condition (2)

Reaction of copper and iron(III) sulfate under acidic condition
ΔrG−120.6 kJ/mol
K1.34 × 1021
pK−21.13
3CuCrystalline solid + 2Fe2(SO4)3Ionized aqueous solution + 6H+Un-ionized aqueous solution
3Cu2+Un-ionized aqueous solution + 4FeSO4Crystalline solid + SO2Un-ionized aqueous solution + H2SO4Ionized aqueous solution + 2H2OLiquid
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1
Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1
Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1
Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
326.8−120.61496.6
per 1 mol of
108.9−40.20498.87
per 1 mol of
163.4−60.30748.30
per 1 mol of
Hydrogen ion
54.47−20.10249.43
per 1 mol of
Copper(II) ion
108.9−40.20498.87
per 1 mol of
81.70−30.15374.15
per 1 mol of
326.8−120.61496.6
per 1 mol of
326.8−120.61496.6
per 1 mol of
163.4−60.30748.30

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
Cu (cr)0[1]0[1]33.150[1]24.435[1]
Cu (g)338.32[1]298.58[1]166.38[1]20.786[1]
Fe2(SO4)3 (cr)-2581.5[1]
Fe2(SO4)3 (ai)-2825.0[1]-2242.8[1]-571.5[1]
H+ (g)1536.202[1]
H+ (ao)0[1]0[1]0[1]0[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
Cu2+ (g)3054.07[1]
Cu2+ (ao)64.77[1]65.49[1]-99.6[1]
FeSO4 (cr)-928.4[1]-820.8[1]107.5[1]100.58[1]
FeSO4 (ai)-998.3[1]-823.43[1]-117.6[1]
FeSO4 (cr)
1 hydrate
-1243.69[1]
FeSO4 (cr)
4 hydrate
-2129.2[1]
FeSO4 (cr)
7 hydrate
-3014.57[1]-2509.87[1]409.2[1]394.47[1]
SO2 (l)-320.5[1]
SO2 (g)-296.830[1]-300.194[1]248.22[1]39.87[1]
SO2 (ao)-322.980[1]-300.676[1]161.9[1]
H2SO4 (cr)
H2SO4 (l)-813.989[1]-690.003[1]156.904[1]138.91[1]
H2SO4 (ai)-909.27[1]-744.53[1]20.1[1]-293[1]
H2SO4 (l)
1 hydrate
-1127.621[1]-950.383[1]211.54[1]214.85[1]
H2SO4 (l)
2 hydrate
-1427.100[1]-1199.650[1]276.40[1]260.83[1]
H2SO4 (l)
3 hydrate
-1720.402[1]-1443.980[1]345.39[1]318.95[1]
H2SO4 (l)
4 hydrate
-2011.199[1]-1685.863[1]414.59[1]382.21[1]
H2SO4 (l)
6.5 hydrate
-2733.256[1]-2285.734[1]587.89[1]570.28[1]
H2O (cr)
H2O (l)-285.830[1]-237.129[1]69.91[1]75.291[1]
H2O (g)-241.818[1]-228.572[1]188.825[1]33.577[1]
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)